/**
 * @Author lzc
 * @Date 2023/3/10 10:42
 */
public class Demo1 {
    public static void main(String[] args) {
        String s = "id,name,region_id,area_code,iso_code,iso_3166_2";
        System.out.println(s.replaceAll("[^,]+", "$0 varchar"));
    }
}
